Description
logger.c in the logger plugin in WeeChat before 1.9.1 allows a crash via strftime date/time specifiers, because a buffer is not initialized.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | weechat | 1.9.1-1 | — |
| Debian 13 | weechat | 1.9.1-1 | — |
| Debian 12 | weechat | 1.9.1-1 | — |
| Debian 7 | weechat | 0.3.8-1+deb7u3 | DLA-1111-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | weechat | 2.8-1ubuntu0.1~esm1 | USN-5258-1 |
| Ubuntu Pro 18.04 LTS | weechat | 1.9.1-1ubuntu1+esm1 | USN-5258-1 |
| Ubuntu Pro 16.04 LTS | weechat | 1.4-2ubuntu0.1+esm1 | USN-5258-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | weechat | 3.2-1.3 | openSUSE-SU-2024:11508-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | weechat | 1.9.1-r0 | — |
| Alpine v3.23 | weechat | 1.9.1-r0 | — |
| Alpine v3.22 | weechat | 1.9.1-r0 | — |
| Alpine v3.21 | weechat | 1.9.1-r0 | — |
| Alpine v3.20 | weechat | 1.9.1-r0 | — |
Show 15 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | weechat | 1.9.1-r0 | — |
| Alpine v3.18 | weechat | 1.9.1-r0 | — |
| Alpine v3.17 | weechat | 1.9.1-r0 | — |
| Alpine v3.16 | weechat | 1.9.1-r0 | — |
| Alpine v3.15 | weechat | 1.9.1-r0 | — |
| Alpine v3.14 | weechat | 1.9.1-r0 | — |
| Alpine v3.13 | weechat | 1.9.1-r0 | — |
| Alpine v3.12 | weechat | 1.9.1-r0 | — |
| Alpine v3.11 | weechat | 1.9.1-r0 | — |
| Alpine v3.10 | weechat | 1.9.1-r0 | — |
| Alpine v3.9 | weechat | 1.9.1-r0 | — |
| Alpine v3.8 | weechat | 1.9.1-r0 | — |
| Alpine v3.7 | weechat | 1.9.1-r0 | — |
| Alpine v3.6 | weechat | 1.7.1-r2 | — |
| Alpine v3.5 | weechat | 1.6.0-r2 | — |
Advisories 3
- USN-5258-1 weechat vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- DLA-1111-1 weechat - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:11508-1 weechat-3.2-1.3 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026